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Tesla responds to "bricking" issue

teslamotors.com

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Re: Tesla responds to "bricking" issue

#61

Earlier quoted context omitted.

It's really no different than early fuel-injected cars being damaged by running out of gas. The solution? Don't run out of fucking gas. That didn't stop fuel injection from becoming the dominant technology, and neither will this halt the rise of EVs.

How did they resolve this with modern fuel injected cars? I routinely drive mine until it runs out of gas (don't ask) and I haven't had any adverse problems.

I've heard that can be really hard on your fuel pump.

Re: Tesla responds to "bricking" issue

#62

This is PR mastery. Nowhere in the release does Tesla refute that owners have "bricked" their batteries. Nowhere in the release do they say that the battery can not be bricked by leaving it for a long period without a recharge. All they say is that it would take a period of weeks for a Tesla roadster to reach 0% charge, and that the Model S has battery disconnect technology that can extend this to several months. The…

It's really no different than early fuel-injected cars being damaged by running out of gas. The solution? Don't run out of fucking gas. That didn't stop fuel injection from becoming the dominant technology, and neither will this halt the rise of EVs.

Any details on fuel-injected being bricked if ran out of gas? Never knew about it...

Re: Tesla responds to "bricking" issue

#63
post #36

Here's one of the problems that I have with this whole thing: My iPod goes dead all the time, so does my phone, so does my laptop, my camera, my remote, my everything. I think that every single battery-powered device I've ever owned has, at some point, gone "dead" (as in it won't power on). NONE of these things have ever been completely incapacitated because of this. I've never had to replace my laptop because I let…

I mentioned this yesterday [1], but I am repeating it here, because I believe that it is a critical piece of the conversation.

The consequences of failing to maintain the battery are clearly stated by Tesla Motors in the owner's manual.

Is it the fault of Tesla Motors that an owner did not read, understand and follow the maintenance procedures outlined in the owner's manual? Is it not the buyer's responsibility to perform due-diligence in this regard?

From the Roadster 2/Roadster Sport owner's manual (italic emphasis is mine):

"Important! Caution: If the battery’s charge level falls to 0%, it must be plugged in immediately. Failure to do so can permanently damage the battery and this damage is not covered by the New Vehicle Limited Warranty. Also, if you allow the battery to fall to a critically low level it may not be possible to charge the vehicle. If you are unable to charge the vehicle, contact Tesla Motors."

[...]

"However, situations may arise in which you must leave the vehicle unplugged for an extended time (for example, at an airport when traveling for a couple of weeks). If this is the case, it is your responsibility to ensure that the battery does not become fully depleted."

[...]

"If for some reason, you are unable to keep the vehicle plugged in when it is not being used, it is up to you to preserve battery life by paying attention to the charge level and the temperature [...]"

[1] http://news.ycombinator.com/item?id=3625527

Re: Tesla responds to "bricking" issue

#64

This is PR mastery. Nowhere in the release does Tesla refute that owners have "bricked" their batteries. Nowhere in the release do they say that the battery can not be bricked by leaving it for a long period without a recharge. All they say is that it would take a period of weeks for a Tesla roadster to reach 0% charge, and that the Model S has battery disconnect technology that can extend this to several months. The…

Right. It's well-executed PR, but if you read carefully, you will note that if you have an older model, discharge it to 10-20% and leave it at the airport for 2-3 weeks, you might indeed end up with dead batteries. Which I think is entirely reasonable and something I would expect.

Re: Tesla responds to "bricking" issue

#66
post #38
post #36

Here's one of the problems that I have with this whole thing: My iPod goes dead all the time, so does my phone, so does my laptop, my camera, my remote, my everything. I think that every single battery-powered device I've ever owned has, at some point, gone "dead" (as in it won't power on). NONE of these things have ever been completely incapacitated because of this. I've never had to replace my laptop because I let…

The problem is, I think, that a battery will discharge even if it's physically disconnected. I do wonder why the batteries become 'bricked', though. All I've heard so far is just that 'they do', not why.

"sounds" answered that previously http://news.ycombinator.com/item?id=3619112

He referenced http://en.wikipedia.org/wiki/Lithium-ion_battery#Electrochem...

"The overall reaction has its limits. Overdischarge supersaturates lithium cobalt oxide, leading to the production of lithium oxide, possibly by the following irreversible reaction:"

Re: Tesla responds to "bricking" issue

#67
post #12

Earlier quoted context omitted.

I'd say it was significantly worse under gasoline. Then, if you ran out of gas, the car was bricked. Tesla is saying that even if you drain your battery driving, it would still take 30 days of failing to charge it to brick it. While the infrastructure for just "filling up real quick" may not exist for electric cars, the infrastructure certainly exists at a person's home, otherwise, they wouldn't buy an electric car.…

Running out of gas doesn't "brick" a car. You can either push or tow it to a gas station, or you can deliver more fuel to it, and it will continue working without missing a beat. Letting a Li-ion battery discharge completely damages the battery, which means you have to replace the entire battery, not just fill it back up. This is physics; Tesla can't change the laws of chemical reactions.

I was alluding to an on an earlier post on this thread about when fuel injection first came around - running out of gas could do damage to the car.

Re: Tesla responds to "bricking" issue

#68
post #36

Here's one of the problems that I have with this whole thing: My iPod goes dead all the time, so does my phone, so does my laptop, my camera, my remote, my everything. I think that every single battery-powered device I've ever owned has, at some point, gone "dead" (as in it won't power on). NONE of these things have ever been completely incapacitated because of this. I've never had to replace my laptop because I let…

I'm not going to point out how Tesla car batteries have to follow the laws of physics. Other people did that already.

Tesla cars aren't mass market products (yet). They're for early adopters who can afford what is essentially a $100.000+ toy. If you then don't read the manual and leave the car on a parking lot for months, then yes, you can ruin the battery.

So let's compare it to other early adopter technology. It took decades before motherboards didn't occasionally die during a BIOS update. For decades stereo equipment (and other expensive electronics) had a little slider on the back of the power supply labeled "110v - 220v". It wasn't always in the right position when you bought the device. If you forgot to switch it to the correct setting the device breaks, simple as that. Expensive cameras that you couldn't clean on the inside -- take them to the beach once and they're ruined forever. Cars with breaks that would fade so quickly that driving down a mountain became tantamount to suicide. Or how about power tools? They don't come with any manual and if you use them in the wrong condition you risk severe injury. Forget to turn off the stove before you leave for holiday? Your house might burn down.

So let's not lose perspective here. If you forget to plug in your Roadster before you go on holiday, in the absolute worst case scenario you have to replace the battery. Not the end of the world. As with any other piece of equipment, you can break it if you're sufficiently careless.

Re: Tesla responds to "bricking" issue

#69
I registered at Tesla motors website so I could comment, but it says to login to comment, even when I'm logged in. When I click 'login' it says I'm already logged in.

I would like to ask if it's true or not that any batteries have become inoperable due to being drained completely. Also If that does occur, what is the cost of replacement, and is it at all covered by warranty.

It doesn't seem like that answer is forthcoming...

Re: Tesla responds to "bricking" issue

#70
post #26
post #11

Earlier quoted context omitted.

> (which, no matter how loud they are, would be hard to hear from across the country, if you've left it in an airport parking lot). Which is presumably why they're doing this: > Starting with Roadster 2.0, owners can also elect for their car to contact Tesla headquarters once the state of charge falls below a specified level, and we can then contact the owner.

Well, why don't they just let the car contact the owner directly then?

Probably easier to have one non-changeable email/phone number in the firmware than have to modify/update it for every person they sell the car to.

Plus, it means the company gets to have a personal connection to all of their users, and when you're talking about a $100k buy-in, that might be the sort of attention a lot of these owners are expecting.

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